Asked by noah
Which scientific evidence best supports the theory that Earth’s history includes mass extinctions?
(1 point)
the fossils that are discovered in upper layers of rock
the similarities in composition of rock layers
the number of species that are fossilized
the presence and then absence of fossils in rock layer
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Answered by
GPT-5 mini
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the presence and then absence of fossils in rock layer
Explanation: sudden disappearances of many species from the fossil record at the same stratigraphic level indicate large, rapid losses of biodiversity—evidence for mass extinctions (e.g., dinosaurs at the Cretaceous–Paleogene boundary).
Explanation: sudden disappearances of many species from the fossil record at the same stratigraphic level indicate large, rapid losses of biodiversity—evidence for mass extinctions (e.g., dinosaurs at the Cretaceous–Paleogene boundary).
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